266 results for "mean".
-
Question in Leonardo's workspace
Find mean, SD, median and IQR for a sample.
-
Exam (6 questions) in Ollie's workspace
Calculate and work with measures of central tendency such as mean, median and mode, and measures of spread such as range and standard deviation.
-
Question in James's workspace
Compute the means of two small samples.
-
Question in Charlie's workspace
Topics covered are calculating the mean, median, mode, range, and standard deviation.
-
Question in John's workspace
Topics covered are calculating the mean, median, mode, range, and standard deviation.
-
Question in Statistics
Compute the standard error of a sample mean, given the sample size and standard deviation.
-
Question in Statistics
Calculate the mean, range, and variance of a small sample.
-
Question in Statistics
Find the mean, median and mode of a list of 10 test scores.
rebelmaths
-
Question in Statistics
Topics covered are calculating the mean, median, mode and standard deviation.
rebelmaths
-
Question in Statistics
rebelmaths
-
Question in Statistics
Fill in a frequency table for grouped data, then estimate the mean and identify the modal class.
-
Question in Statistics
No description given
-
Question in Statistics
No description given
-
Question in Statistics
No description given
-
Question in Statistics
Given a table of data, calculate the mean, mode and median, and complete a frequency table.
-
Question in Statistics
An experiment is performed twice, each with $5$ outcomes
$x_i,\;y_i,\;i=1,\dots 5$ . Find mean and s.d. of their differences $y_i-x_i,\;i=1,\dots 5$.
-
Question in Statistics
For a sample of size n from a normal distribution and given the mean of the sample and the standard deviation of the distribution, find the MLE for the mean. Also the expected information and a confidence interval for the mean.
-
Question in Statistics
For a sample of size n from a normal distribution, given mean of the sample mean and the standard deviation , find the t-statistic corresponding to a null hypothesis $\mu=m$ and a given confidence level. Check if the result is significant at this level.
-
Question in Statistics
Given mean and sd of 1000 sample returns on a scale of 1 to 7 together with a given score, find the z-score.
Also find the 95% confidence interval for the population mean.
-
Question in Statistics
Finding the confidence interval at either 90%, 95% or 99% for the mean given the mean of a sample. The population variance is given and so the z values are used. Various scenarios are included.
-
Question in Statistics
This question provides a list of data to the student. They are asked to find the mean, median, mode and range.
-
Question in Ruth's workspace
This question provides a list of data to the student. They are asked to find the mean, median, mode and range.
-
Question in Tom's workspace
This question provides a list of data to the student. They are asked to find the mean, median, mode and range.
-
Question in Mario's workspace
Find mean, SD, median and IQR for a sample.
-
Question in Brad's workspace
No description given
-
Question in Simon's workspace
Given two sets of data, sample mean and sample standard deviation, on performance on the same task, make a decision as to whether or not the mean times differ. Population variance not given, so the t test has to be used in conjunction with the pooled sample standard deviation.
Link to use of t tables and p-values in Show steps.
-
Question in Stats
Provided with information on a sample with sample mean and standard deviation, but no information on the population variance, use the t test to either accept or reject a given null hypothesis.
-
Question in Stats
Provided with information on a sample with sample mean and known population variance, use the z test to either accept or reject a given null hypothesis.
-
Question in Stats
Finding the confidence interval at either 90%, 95% or 99% for the mean given the mean and standard deviation of a sample. The population variance is not given and so the t test has to be used. Various scenarios are included.
-
Question in Stats
Given mean and sd of 1000 sample returns on a scale of 1 to 7 together with a given score, find the z-score.
Also find the 95% confidence interval for the population mean.